Home / 18,211.99-27,316.12-5,731.65

Finding the Fourth Proportional to 18,211.99, 27,316.12 and 5,731.65

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Solution

The fourth proportional to 18,211.99, 27,316.12 and 5,731.65 is: 8,596.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.99 : 27,316.12 = 5,731.65 : x
  2. Step 2: Convert to fraction form
    18,211.99/27,316.12 = 5,731.65/x
  3. Step 3: Cross multiply
    18,211.99x = 27,316.12 × 5,731.65
  4. Step 4: Simplify right side
    18,211.99x = 156,566,439.20
  5. Step 5: Solve for x
    x = 156,566,439.20/18,211.99
  6. Step 6: Final answer
    x = 8,596.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.